Datasheet Summary
Dual 3+1 PWM Controller with Current Monitor for IMVP-7/VR12™ CPUs
ISL95839
The ISL95839 Pulse Width Modulation (PWM) controller IC provides a plete solution for IMVP-7/VR12™ pliant microprocessor and graphic processor core power supplies. It provides the control and protection for two Voltage Regulators (VRs). The first VR, typical for Vcore, incorporates 2 integrated drivers and can operate in 3-, 2- or 1-phase configurations. The second VR, typical for Graphics, incorporates 1 integrated driver. The two VRs share a serial control bus to municate with the CPU and achieve lower cost and smaller board area pared with the two-chip approach.
Both VRs utilize Intersil’s Robust...